Rect light LTC textures fail to load when cooking with bSharedLinearTextureEncoding enabled

UE - Texture - Apr 2, 2025

When running a build with bSharedLinearTextureEncoding enabled, View.GGXLTCMatTexture and View.GGXLTCAmpTexture are pointing at the black texture fallback, which affects correctness of rect lighting ...

[MAC][OPENGL][METAL]: Investigate why planar reflections on translucent surfaces may not be working

Tools - Jun 29, 2015

See Comments. User reported planar reflections aren't being applied to translucent materials on Mac OpenGL, which may also affect Linux OpenGL and Mac Metal. Need to investigate what this feature r ...

[Mac][Metal] Black/NaN spots Visible in Templates With r.BasePassOutputsVelocity

UE - Platform - Apple - Apr 15, 2016

Base-pass rendering on Mac Metal now generates transient black/Nan spots across the scene - this appears to be related to r.BasePassOutputsVelocity and is presumably the connected to the incorrect s ...

Compile failure adding C++ Vehicle or VehicleAdvanced pack to a project

UE - Gameplay - Jan 11, 2017

Adding the C++ Vehicle feature pack to a project fails to compile with the following error:CompilerResultsLog: Info Error: Couldn't find parent type for 'TP_VehiclePawn' named 'AWheeledVehicle' in c ...

[CrashReport] Crash on Mac - UE4Editor-Slate.dylib!FTextLayout::GetAsTextAndOffsets()

UE - Platform - Apple - Jul 17, 2017

This is a common crash occurring for Mac users on the 4.17 Preview, and a few cases in 4.16. I have been unable to find any matching reports of this crash on Windows. There is a slight variation in ...

[Impulse Response] - Opening an Impulse Response asset throws errors in the Output Log

UE - Audio - Nov 4, 2022

Errors are appearing in the log when opening an Impulse Response asset type. This does not occur in Release-5.0 and is a regression. Note: The IR appears to still work normally as part of a Submix E ...

Debug information is sometimes missing when compiling with cl-clang

UE - Foundation - Cpp Tools - UnrealBuildTool - Aug 24, 2023

Via UDN: As has been discussed previously here and in CL 20055361, debug information is sometimes missing when compiling with Clang. We've pinpointed this to debug information not being emitted fo ...

Bloom artifact showing in splitscreen settings

UE - Graphics Features - Jan 15, 2015

There is a bloom artifact at the top of the bottom player's screen. ...

Tilemap using Masked Lit Sprite Material not Rendering in Standalone mode

UE - Gameplay - Paper2D - Jan 26, 2016

When using a Tilemap with a Masked Lit Sprite Material, the tilemap will not render while in Standalone. In the test project, the Paper2D Blueprint character was switched to Masked Lit Sprite Materi ...

Compile errors in AnimBP when using latent functions

OLD - Anim - Jun 20, 2016

Compile errors in AnimBP when using latent functions. Does not occur in Blueprints, only AnimBPs. Error Default value 'execute' for Value is invalid: ''execute' is not a valid enumerant of '<EMo ...